Sanyo PLC-SU70 Service Manual
Also see for PLC-SU70: Owner's manual
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Contents
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-5-FuseA fuse is located inside of the projector. When the POWER indicatoris not lightning, the fuse may be opened. Check the fuse as follow-ing steps.The fuse should be used with the following type;Fuse Part No.: 423 021 7801TYPE T6.3AH 250V FUSELITTLE FUSE INC. TYPE 21506.3How to replace the fuse1. Remove the lamp cover and fuse cover as shown in figure.2. Take the fuse out from the aperture, and replace the new one withthe specified type.Lamp cover switchThe lamp cover switch (SW901) cuts off the drive signal to the lampcircuit when the lamp cover is removed or not closed completely.After opening the lamp cover for replacing the lamp ass’y, place thelamp cover correctly otherwise the projector can not turn on.Thermal switchThere is the thermal switch (SW902) inside of the projector to detectthe internal temperature rising abnormally. When the internal tem-perature reaches near 105˚C, the thermal switch opens to stop theoperation of the power supply circuit.The thermal switch cannot be reset itself automatically even if theinternal temperature becomes normal. Reset the thermal switch fol-lowing to the below procedure.How to reset the thermal switch1. Remove the cabinet top, cabinet front and main board and thenremove the power box top cover.2. Press the reset button on the thermal switch in the power box.CAUTION:Before press the reset button, make sure that the AC cord must bedisconnected from the AC outlet.This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projec-tor, it will automatically turn off by operating one of the following protection circuits.Thermal switch (SW902)FuseCircuit ProtectionsFuse cover |
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